AC left on 24/7 can cost you 200€ in 4 nights
In Mediterranean short-term rentals, air conditioning represents up to 70% of the summer electricity bill. Powtiva caps consumption, alerts in real time, and automatically cuts the AC circuit when the guest's prepaid credit is exhausted.
Why AC has become the #1 line on your summer bills
In ten years, reversible AC has gone from optional equipment to a must-have standard in short-term rental. In 2025, nearly 75% of Airbnb listings in the south of France mention AC as a mandatory feature. A guest paying 180€ a night doesn't think twice: they turn it on when they arrive, leave it on when they head to the beach, and sometimes overnight with the windows open. The host eats the bill.
The numbers don't lie. A 3.5 kW reversible AC unit at full power uses 3.5 kWh/h. Over 8 hours of normal use at 75°F, count roughly 10 to 15 kWh a night, or 2.50 to 3.80€ at the current regulated rate. But let a guest set it to 65°F and run it 24/7 and consumption climbs to 40-60 kWh a night, or 10 to 15€ a night. Over a 4-night stay, the gap can hit 60€.
The real problem isn't guest behavior: it's the total absence of any mechanism to stop it. No locked remote, no capped thermostat, no alert when consumption crosses a threshold. The host discovers the damage a month later on their utility bill. Powtiva closes that loop by giving the host a real technical lever, without degrading the guest experience or breaking the law.
How Powtiva takes back control of AC in 3 steps
A cap, monitoring, and automatic legal load-shedding.
Cap the AC setpoint
You set a minimum setpoint (75°F recommended) and a usage window. The guest keeps +/- 2°F control but can't run 65°F all night.
Detect overuse live
Our meters measure the AC circuit consumption in real time. As soon as the pace exceeds 3 kWh/h or the included allowance is hit, an alert goes to the guest and the host.
Load-shed automatically
When prepaid credit runs out, only the AC circuit gets cut. Lighting and outlets stay powered, in line with the law: the guest tops up in 30 seconds and comfort resumes.
What you're allowed to do with a guest's AC
Three rules to know before installing a control system.
No legal cap, but ADEME recommends 78°F
The law doesn't impose a minimum temperature for hosts in short-term rentals. However, ADEME (the French environmental agency) recommends 78°F in summer and notes that one degree cooler equals 7% more consumption. A setpoint locked at 75°F stays comfortable and defensible.
Circuits you can cut
In prepayment, only comfort circuits can be shed: heating, AC, electric water heater. Lighting and regular outlets must stay powered at all times, for safety and dignity reasons.
Disclosure requirement
The billing and load-shedding system must be disclosed to the guest before booking: mention in the Airbnb listing, reminder in the welcome message, sign in the property. Powtiva auto-generates these disclosures in 6 languages.
The 4 benefits of structured AC control
What you gain going from free-for-all AC to framed AC.
Summer bill divided by 3
On a southern villa, the July-August electricity bill typically goes from 800€ to 250€. Not by depriving the guest, but by billing overuse beyond an included allowance. Rental margin returns to pre-heatwave levels.
Airbnb rating protected
The guest is informed at booking, gets a mid-stay alert, and can top up in one click. No surprises, no conflicts at check-out. Field returns show the average rating stays identical, even improves thanks to transparency.
Zero conflict, zero withheld deposit
No more check-out arguments about who left the AC on. The meter shows the breakdown by appliance, billing is automatic. You save time and avoid vengeful reviews tied to deposit withholding.
Multi-AC villa protection
On a villa with 2, 3 or 5 AC units, each unit is monitored separately. You see which is overheating, which is running with a window open, and load-shedding applies to the right circuit. Ideal for high-end properties.
3-bedroom villa on the Riviera: 800€ of AC per month, brought down to 250€ passed through
Real case from a host equipped with 3 reversible AC units.
Without control, summer 2024
- • 3 reversible AC units left at 66°F all day, windows sometimes open.
- • Measured average consumption: 45 kWh a night, AC only.
- • July and August utility bill: 1,620€ combined, no passthrough possible.
800€/month
Summer electricity bill
With Powtiva, summer 2025
- • Setpoint locked at 75°F, 20 kWh allowance included per night, 80% alert.
- • Automatic AC circuit load-shedding beyond prepaid credit.
- • Transparent billing displayed in the guest app, card payment.
250€/month
Net host cost
Frequently asked questions on AC in Airbnb
Concrete answers from southern French hosts.
How much does a reversible AC actually use in Airbnb?
Can I legally cut a guest's AC in short-term rental?
What temperature should I set an Airbnb AC to?
Should I choose single-split or multi-split AC for a rental?
What do I do if the guest opens windows with the AC on?
Do I need a thermostat per AC unit?
Won't the guest leave a bad review because of load-shedding?
How long does it take to install a Powtiva AC control system?
Discover also
Average electricity consumption in Airbnbs
kWh-per-night benchmarks for studios, one-bedrooms, two-bedrooms and villas, season by season, from 5,000 nights instrumented by Powtiva.
Prevent electricity consumption abuse
Identify, prevent, and eliminate energy abuse in short-term furnished rentals, from communication to automatic prepayment.
Energy savings in short-term rentals
The host guide to 15 concrete actions cutting a rental's electricity bill 30 to 40%, ranked by return on investment.
Ready to take back control of your rentals' AC this summer?
Try Powtiva for 30 days with no commitment and divide your summer electricity bill starting next season.